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Old 10-28-2011, 08:02 AM   #4351
kYLEMtnCRUZr
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I can't wait until the WRs are $3000 used in a few years!

351 kit huh? Any sacrificing in reliabilty stories there? I might have to do that kit in 20k or 30k
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Old 10-28-2011, 08:39 AM   #4352
bumblebee1
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Quote:
Originally Posted by kYLEMtnCRUZr View Post
I can't wait until the WRs are $3000 used in a few years!

351 kit huh? Any sacrificing in reliabilty stories there? I might have to do that kit in 20k or 30k
So far it seems as reliable as the stock set-up.
They say torque way down low and good staying power at highway speeds.
Seems to be the way to go.
I think the WWR is very weeks at low revs, so it's something to consider.
They also make a 290 kit for the wwr but at about twice the cost than the 351 klx.
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Old 10-28-2011, 08:42 AM   #4353
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Quote:
Originally Posted by ag_streak View Post
Gang, I could use some advice.

Who among us have ridden both the current Yamaha XT250 (air-cooled, 5 speed ~14 hp?) and a "modern" four stroke, DOHC water-cooled 250, like the Kawasaki KLX (6-speed)?

How do they compare in power? Acceleration, top speed? I would expect the suspension on the KLX would be way better, yes?

Background: I'm more of a DR650 guy, and I bought my wife an XT250 on a whim. I'm wondering if I could live with "just a 250" if it was more capabile (I don't feel like I could "live with" the XT!)

So I was wondering if an upgrade to a bike like the KLX or Yamaha WR is "worth it".

Thanks!
I have an '07 KLX, my brother has an '11 WR250R, and my friend has an XT250. I have the 351 kit on my KLX, which really makes it feel like a different bike (I bought it as a 250 though).

I try to think about how I would answer your question, but it's very subjective, depending on what type of riding you want to do with the bike.

The harder you push the bikes, the more difference you will feel between them. If you hop on and putt-putt over to the store and back at 30 MPH, they won't feel that much different.

At the core, the WR and XT are very different bikes. I would say many who would not be satisfied with the XT could be happy with the performance the WR offers (and the price difference matches that). The KLX falls in the middle. The KLX and WR suspension are better, but by how much depends on how you use the bike. The WR is faster, but we're not talking about the difference between a Corolla and a Mustang. Depending on why you might want to have "just a 250", there are big bore kits and lots of other modifications for the KLX and the WR, which may keep you satisfied with them into the future, if you're not considering this for financial reasons.

I could see a successful jump from a DR650 to a WR (or even a KLX), but maybe not from something like a 1200GS, unless accompanied by a change in riding style or purpose.

Part of the draw of minimalist touring (for some) is the feeling of the shift of focus from the machine to the ride that NOT having pavement rippling power brings. For others it can be the feeling of freedom that small and simple bikes bring whereby you regain ownership of your life/ride instead of feeling "owned" by your bike, and in that sense, the XT is quite a fine minimalist tourer. For many people, the only answer is to have multiple bikes. Keep the DR, buy a WR, and after a period of time with both you'll know for sure if you can live with only a 250. Call it "an experiment in the quest for the fulfillment of the meaning of life".
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Old 10-28-2011, 09:02 AM   #4354
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Quote:
Originally Posted by bumblebee1 View Post
I think the WWR is very weeks at low revs, so it's something to consider.
I rode the KLX only for a very brief ride. My impression is rather that the WR is much stronger up high in the revs so that it seems it would be weaker than the KLX low down. Not sure whether it really is or whether this is more of a perception thing.

My personal preference between the two: definitely WR if you can swallow the $1500 price difference. The difference is really hard to justify though. But I didn't mind too much.

Oh: and I personally would never put a big bore kit on a bike but rather get a bigger engine to begin with. My purpose is touring, therefore I'll take the reliability of a stock engine over the questionable power of a modded kit. If I want power, I ride a different bike.
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Old 10-28-2011, 10:25 AM   #4355
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WRR - best 250 out there.

Glue the airbox cover down (10 minutes).
Remove the air injecton system (15 minutes)
Remove the Exhaust flapper and add FMF Q pipe (45 min)... or gut it from the stock pipe.
Add a EJK or FMF fuel programmer.

Different bike... way different bike. (Note, IMHO: the stock model is pretty good too, and should keep lots of folks happy.)
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Old 10-28-2011, 01:23 PM   #4356
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Excellent comparison info, all! Thank you!!
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Old 10-28-2011, 03:25 PM   #4357
Earthscape
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Quote:
Originally Posted by cug View Post
Oh: and I personally would never put a big bore kit on a bike but rather get a bigger engine to begin with. My purpose is touring, therefore I'll take the reliability of a stock engine over the questionable power of a modded kit. If I want power, I ride a different bike.
Wow, you're missing out!
What if the same bike is sold in a different part of the world with a larger bore?
What if the bike manufacturer is the one offering the big bore kit?
What if there isn't a bike with the exact chassis and engine size you are looking for?

Obviously there are more choices if you can make an off-road only bike street legal, but in my part of the world, that is not possible, so choice is very limited. It's common practice for manufacturers to design an engine to handle a higher level of power than it eventually rolls off the assembly line with, far in excess of what a typical big bore kit adds. So at that point, you're talking about only the reliability of the kit parts themselves, and if they are made by the bike manufacturer itself, well then...?
Even manufacturers do this (see early 80's Yamaha XT250, followed by the XT350 which was the same engine with a larger bore; KTM 950 --> 990; etc). If a big bore kit wears out for me in 80,000 instead of 100,000, then I'll fix it, and have enjoyed the bike more for those 80,000 miles. Naturally you can do whatever you want, but sometimes it's better to look at individual cases rather than generalizations - no offense intended.
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Old 10-28-2011, 03:32 PM   #4358
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Wow, you're missing out!
I doubt it. But again - that's of course a personal opinion. You have yours I have mine.
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Old 10-28-2011, 04:00 PM   #4359
kYLEMtnCRUZr
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America is the country that gets the largest bore. And cars. And food portions. And walk in closets.

I wish we had so south east Asia variety in our bikes. I always wanted the plated XR 100 SM!
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Old 10-28-2011, 06:04 PM   #4360
bumblebee1
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I've been having fun with graphs

I've been looking at the HP and RPMs of the stock KLX, the 351 KLX and the WRR.
Very interesting.



here are the numbers

rpm
stock klx
351 klx
wr250r
4000
9.5
13.5
6?
4500
11
15.5
8?
5000
12.5
17
10.5?
5500
14
19
12.5
6000
16
21
14
6500
18
22
16.5
7000
19
22
18
7500
19
20
20.5
8000
18.5


22
8500
18


23
9000
17


23
9500
13


22
10000
blah


22
10500




22
1100




22
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Old 10-28-2011, 06:20 PM   #4361
NJ-Brett
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Some people are just timid, and tend to think any changes will ruin reliability, or that the factory make something the best it can be (and ignore emissions and noise restrictions).
I have modified all my bikes for more power and never had one wear out, or blow up, or break down.

I never had a bike wear out a motor, but have got some stock used ones that were worn out.
I put a big bore kit in an old xl250, plus a cam, and that thing ran great for a long time with lots of abuse.

Now I don't think you could double the power output of a motor without running into issues long term, but your usual 20% seems fine.
I am sure your typical bike looses at least 10% of its power in intake noise and lean burning mandates.
And that only makes the motor run hotter and have a shorter life.

Oddly enough, my current bike does NOT seem to be limited by the usual intake, exhaust and lean burn restrictions.
It seems to be valves and cam stuff that limits power.
Even if they made a big bore kit, it would do nothing...
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Old 10-28-2011, 06:24 PM   #4362
kYLEMtnCRUZr
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Im not against displacement changes, but what's with that jittery graph for the 351?
Different dyno or something?
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Old 10-28-2011, 06:26 PM   #4363
bumblebee1
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I guess some people like to smooth out their graphs.
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Old 10-28-2011, 06:28 PM   #4364
Klay
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What happened to our font?
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Old 10-28-2011, 06:31 PM   #4365
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What happened to our font?
X2! The previous pages of this thread are fine, and other threads at this forum are fine!

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